Combination-lock.



No. 650.267. Patented May 22 N. P. NIELSEN & J. L. MURPHY.

COMBINATION LUCK.

(Application 1ed`Feb. 14, 1900.)

(No Model.)

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/N VEA/70H5 W/ TNE SSE S AUNITED STATES PATENT Orrin-EE..

NIELs PETER NiELsEN AND JuNiUs LMURPHY, OE DENVER, COLORADO.

COMBINATiON-LOCK.

SPECIFICATION forming part of Letters `Patent No. 650,267, dated May 22, 1900.

Application tiled February 14, 1.900|` Serial No. 5,219. (No model.)

sEN and JUNIUs L. MURPHY, citizens of the i United States, and residents of Denver, in

the county of Arapahoe and State of Colorado, have invented a new and Improved Combination-Lock, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved combination lock designed for use on bicycles and other machines, devices, and articles and arranged to protect the Owner of the article from theft both -by lookin g a movable part against movement and by rendering the removal of the entire lock impossible without leaving traces on the article, so that the stolen article may be readily identified.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafterand then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specilication, in which similar characters of reference indicate corresponding parts in all the views.

Figure lis afront view of theimprovement as applied to abicycle-frame. Fig. 2isa sectional front View of the same on the line 2 2 in Fig. 3. Fig. 3 is a transverse section of the saine, and Fig. 4 is a sectional plan view of the saine on the line et 4 in Fig. 3.

The improved combination-loek is mounted in a suitably-constructed casing A, preferably made in two parts A A2, screwed or Otherwise fastened together, the inner part A' being fastened by solder :or screws B or other devices to a part of the bicycle-frame C or other member of the article on which the combination-lock is to be used. In the part A2 is formed a recess A3 for the reception of a keeper D, held on one end of a chain E, secured to a part of the bicycle-frame and passed through or around a movable part of the bicycle to then engage with the keeper D of the combination-lock, so as to hold said movable member against movement as long as the keeper D is engaged by the combination-lock. For this purpose the aperture in the keeper D is adapted to be engaged by a spring-pressed catch F, mounted to slide in the offset G of a bolt G, having a shank G2 v polygonal to engage a correspondinglyshaped aperture in the bottom or base of the casing vOn the shank G2 of the bolt G, within the lcasing part A2, are formed arms G4, adapted to engage slots Il', formed in tumbler-disks l-l, mounted to turn in the casing part A2, a

knob H2 being on the outer ends of the tumbler-disk shafts to allow the operator to conveniently set the tumbler-disks according to the desired combination indicated by the i11- dex-plate Il3 on a graduation-mark Lformed on the face of the casing part A2, it being understood that the indexplates Hsare of the usual construction and secured on the shaft orknob H2 of the tumbler-disks. Vhen the slots H are out of alinement with the arms H* and the catch F is in engagement with the keeper D to hold a movable member of the bicycle against movement, then an unauthorized person cannot unlock the chain E, as the keeper D is securely locked in position bythe springcatch F, contained in the bolt G, and held against outward movement by the arms G4,

.abutting against the inner faces of the tum-v bler-disks H.

In order to remove the keeper D, it is necessary to slide the bolt G outward, so that the spring-catch F is moved out of engagement with the keeper D, and for this purpose it is necessary that the knobs H2 be turned to the desired combination indicated on the marks I-that is, until the slots H' register with the arms G4-to permit an outward sliding of the bolt G the arms passing into the said slots H. Now when the bolt is moved into this outermost position the catch F is dis'- engaged from the keeper D and the latter is removed from the recess A3 to allow of removing the chain E from the movable member of the bicycle. knows the combination he cannot turn the disk to the proper position-that is, to bring the slots in register with the arms and allow an outward-sliding movement of the bolt for unlocking the keeper D. It will further be seen that by securing the lock to the bicycleframe a removal of the lock from the frame by unauthorized persons will leave ident-ili- Thus unless a person ters Patent- 1. A combination-lock, comprising a cas-v ing adapted'to be secured to the article to be protected, slotted tumbler-disks mounted to turn in said casing vand having external setting-knobs, a bolt mounted to slide in said Vcasing and having arms for engagementwith the disks, and a spring-pressed catch held in said bolt and adaptedto engage a keeper, substantially as described.

2. A combination-lock, comprising a cas-4 ing secured to the article to be protected, the said casing having a recess formed there-in for the reception of a keeper, slotted tu mblerdisks mounted to turn in said casing, aV slid-V; ing bolt having a shank extending Within the casing, arms on the shank of the bolt andadapted to abut against the in ner face of said disks to hold the bolt against outward move` ment, or to engage the slots therein when the.. disks are in proper p0sition,to permit said voutward slidngof the'bolt, anda lockingcatch carried by an offset of said bolt for engagement Withthe keeper, substantially as shown and described. A

3. A combination-lock, comprisinga casing made in parts removably connected with each other, and of which one part is secured to the article to be protected, slotted tumblery disks mounted to turn in the casing, and having external setting-knobs and index-disks, a bolt mounted to slide in said casing, and having arms for engagement with and4 for abutting against said disks, and forengagi 'ing the slots therein when the disks are in proper positionand a spring-pressed catch heldin said bolt and adapted to engage a keeper, substantially as. shown and described.

. In testimony whereof wehave signed our names to this specication in the presence of two subscribing Witnesses.

o WVitnessesz' F. A. FOSTER, H. T.y HIGGINS. 

